Chemistry 103/113 Laboratory

This Week

Answer Keys

Gen Chem Lab

Periodic Table

· A Cycle of Copper Reactions

· Complete/Check Study Assignment C

Next Week

• Expt: Photochemical Blues (week 1)
• Complete/Check Study Assignment E
• Quiz 3: LEDs, Study Assignment C

Notes for Today

A Cycle of Copper Reactions

Goals

· Observe each rxn – gas, ppt, color change?

· Use equations to interpret observations

· Recover as much Cu as possible

Thinking about the rxns

· What kind of rxn? Redox (e- transfer), acid-base (H⁺ transfer), pptn, etc.

· What reactant is required for rxn?

· How do you know when a rxn is complete?

· How can you minimize losses of Cu/Cu compounds?

New equipment

Centrifuge	Analytical Balance	Hot Plate

Safety

· Goggles required throughout

· Keep hands away from spinning centrifuge rotor

· Keep acetone (flammable) away from heat sources